Design Risk Management: Steelwork Temporary Conditions

Purpose of guidance

It is nearly always the case when designing steelwork that more than one ‘Designer’ is involved.

In this situation it is imperative (and usually a statutory obligation) for clarity with regards to residual risk and further design needs.

This briefing note provides guidance for designers and their responsibilities for steelwork temporary conditions.

About this briefing note

This note is based around the statutory provisions of CDM2015 (Regulation 9 – Designer duties) and authoritative associated industry guidance:

• AD 435: Beams supporting precast planks: checks in the temporary condition (1)
• SCI publication P401: Design of composite beams using precast concrete slabs in accordance with Eurocode 4 (2)

And also:

• BS5975:2019+A1:2020 Code of practice for temporary works procedures and the permissible stress design of falsework
• BS EN 10902:2018 Structural Steel and Aluminium

These are of direct relevance to Permanent Works and Temporary Works Designers.

• Clause 8 of BS5975 sets out requirements for Permanent Works Designers
• Clause 9.3.1 of BSEN1090 sets out requirements for Permanent Works Designers regarding the design basis for the erection method.